Home / 3,876.15-5,814.07-1,243.59

Finding the Fourth Proportional to 3,876.15, 5,814.07 and 1,243.59

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Solution

The fourth proportional to 3,876.15, 5,814.07 and 1,243.59 is: 1,865.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.15 : 5,814.07 = 1,243.59 : x
  2. Step 2: Convert to fraction form
    3,876.15/5,814.07 = 1,243.59/x
  3. Step 3: Cross multiply
    3,876.15x = 5,814.07 × 1,243.59
  4. Step 4: Simplify right side
    3,876.15x = 7,230,319.31
  5. Step 5: Solve for x
    x = 7,230,319.31/3,876.15
  6. Step 6: Final answer
    x = 1,865.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.